Shadowing Practice: Hanoi remote controls air quality | Vietnam Today - Learn English Speaking with Video
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31 sentences
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Turning now to environmental concerns closer to home,
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Hanon authorities are calling on six neighboring provinces and relevant ministries to take urgent action against rising air pollution.
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It's been quite the conversation recently and you can really see the pollution with your own eyes too.
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And air pollution has been persisting in the capital city and the situation is becoming increasingly urgent.
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Air pollution levels have been rising steadily during seasonal transitions, affecting public health and the environment.
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The levels across the capital are climbing, particularly during seasonal transitions with emissions crossing provincial boundaries.
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Hanoi has proposed establishing a national steering committee and across regional forecasting an early warning system.
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Information sharing with nearby localities such as Mắc Ninh, Hưng Yin and Tai Fong is expected to help improve air quality and support sustainable development across the region.
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Air pollution is not a new problem for Hanoi.
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In fact, it has become a prolonged challenge, directly affecting daily life and public health.
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So far, authorities are deploying management measures and advanced technologies, including UAVs, to monitor rise,
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straw burning and dust emissions from major construction sites across the city.
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The monitoring results are shared promptly with local authorities to enable timely action.
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Now, let's take a look.
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According to the Department of Environment,
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Hanoi has three major hotspots where smoke and dust frequently affect residential areas and key traffic routes.
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Since September, the Ministry of Agriculture and Environment Center for Agricultural Monitoring has deployed UAVs equipped with imaging and LIDAR systems.
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They operate rotating flights to track emission sources closely.
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UAV technology is a new and practical solution in Vietnam.
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We have deployed an uncrewed aerial vehicle system to monitor illegal waste dumping, soil disposal and construction debris in polluted areas around Hanoi.
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Each flight requires three personnel and typically lasts between 35 and 45 minutes.
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After nearly three months, monitoring has improved significantly by combining satellite imagery with UAV data,
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enabling authorities to accurately identify pollution hotspots in time and space and respond promptly.
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Regarding air quality, the National Remote Sensing Department is currently implementing monitoring of transparent air pollution sources.
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For Hanoi, we are using optical remote sensing data to monitor large construction sites.
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Based on these data, we then conduct on-site inspection and deploy UAVs, allowing us to carry out more details and targeted monitoring.
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As extreme weather events and urban environmental challenges become increasingly unpredictable,
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AI and remote sensing technologies do more than review what the human eye cannot see.
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They provide valuable time to act early,
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marking the difference between reactive responses and a proactive city committed to protecting public health.
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Thank you.
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Vocabulary and speaking notes for this lesson
This B2 speaking lesson is built on the video “Hanoi remote controls air quality”. The speaker keeps coming back to these words: pollution, Hanoi, Uav, monitoring, authorities. This video has 31 sentences and 439 words to shadow. The speech runs for 3:34. The speaker talks at a steady 123 words per minute, a comfortable pace for shadowing. Only 72% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
The 15 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| pollution noun | /pəˈluʃən/ | Physical contamination, now especially the contamination of the environment by harmful substances, or by disruptive levels of noise, light etc. |
| deploy verb | /dɪˈplɔɪ/ | To prepare and arrange (originally military unit or units, i.e., to array troops) for use. |
| emission noun | /ɪˈmɪʃ.ən/ | Something which is emitted or sent out; issue. |
| promptly adverb | /ˈpɹɑmptli/ | Both soon and quickly. |
| seasonal adjective | /ˈsiːzənəl/ | Of, related to, or reliant on a season or period of the year, especially with regard to weather characteristics. |
| urgent adjective | /ˈɜː.d͡ʒənt/ | Requiring immediate attention. |
| pollute verb | /pəˈluːt/ | To make something harmful, especially by the addition of some unwanted product. |
| proactive adjective | /pɹoʊˈæk.tɪv/ | Acting in advance to deal with an expected change or difficulty. |
| prolong verb | /pɹoʊˈlɑŋ/ | To extend in space or length. |
| uncrewed adjective | without a crew; unmanned | |
| equip verb | /ɪˈkwɪp/ | To supply with something necessary in order to carry out a specific action or task; to provide with (e.g. weapons, provisions, munitions, rigging). |
| persist verb | /pɚˈsɪst/ | To go on stubbornly or resolutely. |
| reactive adjective | /ɹiːˈæktɪv/ | That reacts or responds to a stimulus. |
| rotate verb | /ˈɹoʊ.teɪt/ | To spin, turn, or revolve. |
| locality noun | /loʊˈkæl.ɪ.ti/ | The fact or quality of having a position in space. |
Phrasal verbs you will hear
| Word | Pronunciation | Meaning |
|---|---|---|
| carry out verb | /ˈkæ.ɹi aʊt/ | To hold while moving it out. |
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Present perfect continuous have/has been + -ing — an action that started earlier and is still going on | has been persisting · have been rising |
| Present perfect have/has + past participle — a past action that still matters now | It's been · has proposed · has become |
| Passive voice be + past participle — the focus is on what happens, not who does it | is expected · are shared |
Pronunciation to watch
- The “sh” and “zh” sounds: pollution /pəˈluʃən/, emission /ɪˈmɪʃ.ən/, provincial /pɹəˈvɪn(t)ʃəl/, inspection /ɪnˈspɛkʃən/
- Long words — get the stress right: locality /loʊˈkæl.ɪ.ti/, accurately /ˈæk.jə.ɹɪt.li/, sustainable /səˈsteɪnəbəl/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
- Record yourself and compare with the original, paying attention to words like pollution, deploy, emission.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.